A级阻燃膜，采用材质较好的阻燃材料，几乎不发生燃烧，可用于对阻燃要求较高的场景。产品名称单位阻燃膜测试方法厚度thicknessμm129±10%GB/T6672宽度widthmm200-1100GB/T21302穿刺强度Puncture strengthN20GB/T21302溶剂残留总量Total solvent residuemg/㎡＜5BS6455:1984氦气透过率Helium transmission ratembar·L/(S·㎡)5*10-7内部标准水蒸气透过率water vapor transmission rateg/㎡·24hr＜0.5GB1037氧气透过率Oxygen transmission ratecc/㎡·d＜0.5GB/T31354热封强度seal strengthN/15mm＞60QB/T2358高低温老化80℃→-30℃reciprocating cycle for 28 days，65%RH △k=mW/(m·k)≤2GB/T39548高温高湿老化70℃，90%RH aging for 30 days△k=mW/(m·k)≤4GB/T39548特点 features